KThreadLocalPage: Difference between revisions

Bond697 (talk | contribs)
Created page with "Category:Kernel objects Size : 0x18 bytes {| class="wikitable" border="1" |- ! Offset ! Type ! Description |- | 0x0 | | |- |}"
 
Bond697 (talk | contribs)
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|-
|-
| 0x0
| 0x0
|  
| u32
|  
| Pointer to memory page used for thread local regions for threads owned by a given process
|-
|-
| 0x4
| KProcess*
| Owner process
|-
| 0x8
| u32
| Number of threads owned by the process
|-
| 0xC
| char[8]
| Used to track the usage of thread local regions in the local page.
|-
| 0x14
| u32
| Zero
|}
|}
The 8-byte array used to track the regions in use in the page works like so:
Each char is either 1 or 0, and there's one char per thread local region.  0x200 bytes per region * 8 regions is 0x1000 bytes or 1 full page.  The chars are set to 1 to indicate the region is unused and 0 to indicate the region is in use.
Processes with more than 8 threads have multiple associated KThreadLocalPages which are linked together with KLinkedListNodes.